Segment Information - Schedule of Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Segment Reporting Information [Line Items]
Revenue	$ 31,198	$ 32,070	$ 91,397	$ 91,817
Programming and production	8,655	10,216	24,646	27,000
Marketing and promotion	2,196	1,989	6,435	5,929
Depreciation	(2,353)	(2,219)	(6,934)	(6,548)
Amortization	(1,666)	(1,659)	(5,089)	(4,421)
Interest expense	(1,128)	(1,037)	(3,283)	(3,065)
Investment and other income (loss), net	61	(3)	9,705	(140)
Income before income taxes	4,468	4,819	23,607	15,099
Operating Segments
Segment Reporting Information [Line Items]
Revenue	32,483	33,637	95,375	95,803
Adjusted EBITDA	10,163	10,259	30,985	30,774
Operating Segments | External Customers
Segment Reporting Information [Line Items]
Revenue	30,509	31,434	89,364	89,802
Operating Segments | Residential Connectivity & Platforms
Segment Reporting Information [Line Items]
Revenue	17,601	17,866	53,057	53,558
Programming and production	3,952	4,102	12,057	12,756
Other	7,095	6,860	20,446	19,943
Adjusted EBITDA	6,554	6,904	20,554	20,859
Operating Segments | Residential Connectivity & Platforms | External Customers
Segment Reporting Information [Line Items]
Revenue	17,582	17,807	52,981	53,431
Operating Segments | Business Services Connectivity
Segment Reporting Information [Line Items]
Revenue	2,576	2,425	7,647	7,253
Other	1,122	1,034	3,327	3,117
Adjusted EBITDA	1,454	1,391	4,320	4,137
Operating Segments | Business Services Connectivity | External Customers
Segment Reporting Information [Line Items]
Revenue	2,570	2,419	7,629	7,236
Operating Segments | Media
Segment Reporting Information [Line Items]
Revenue	6,589	8,231	19,470	20,926
Programming and production	4,297	5,917	11,860	13,652
Marketing and promotion	321	470	947	1,071
Other	1,140	1,194	3,344	3,371
Adjusted EBITDA	832	650	3,318	2,832
Operating Segments | Media | External Customers
Segment Reporting Information [Line Items]
Revenue	5,347	6,926	15,785	17,338
Operating Segments | Studios
Segment Reporting Information [Line Items]
Revenue	3,000	2,826	8,258	7,822
Programming and production	1,959	1,818	5,519	5,176
Marketing and promotion	436	301	1,280	1,126
Other	240	240	711	685
Adjusted EBITDA	365	468	749	835
Operating Segments | Studios | External Customers
Segment Reporting Information [Line Items]
Revenue	2,294	1,993	6,027	5,555
Operating Segments | Theme Parks
Segment Reporting Information [Line Items]
Revenue	2,717	2,289	6,943	6,243
Other	1,759	1,442	4,898	4,132
Adjusted EBITDA	958	847	2,045	2,111
Operating Segments | Theme Parks | External Customers
Segment Reporting Information [Line Items]
Revenue	2,717	2,289	6,942	6,242
Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenue	1,974	2,203	6,011	6,001
Intersegment Eliminations | Residential Connectivity & Platforms
Segment Reporting Information [Line Items]
Revenue	19	59	76	127
Intersegment Eliminations | Business Services Connectivity
Segment Reporting Information [Line Items]
Revenue	6	6	17	17
Intersegment Eliminations | Media
Segment Reporting Information [Line Items]
Revenue	1,242	1,305	3,685	3,588
Intersegment Eliminations | Studios
Segment Reporting Information [Line Items]
Revenue	706	833	2,231	2,268
Intersegment Eliminations | Theme Parks
Segment Reporting Information [Line Items]
Revenue	0	0	1	1
Other revenue
Segment Reporting Information [Line Items]
Revenue	752	686	2,221	2,181
Other revenue | Media, Studios and Theme Parks headquarters and other
Segment Reporting Information [Line Items]
Adjusted EBITDA	(271)	(200)	(789)	(642)
Other revenue | Corporate and other
Segment Reporting Information [Line Items]
Adjusted EBITDA	(388)	(300)	(1,142)	(881)
Eliminations
Segment Reporting Information [Line Items]
Revenue	(2,036)	(2,253)	(6,198)	(6,167)
Adjusted EBITDA	50	$ (21)	153	$ 22
Segment Reconciling Items
Segment Reporting Information [Line Items]
Transaction and transaction-related costs	$ 116		$ 248